LG 42LV3300-TG (CHASSIS:LB01M) Service Manual ▷ View online
- 21 -
11. AV Audio
Check AV Cable for damage
for damage or open conductor.
Check JK1604 & Signal Line.
ok
ok
No
Replace Jack.
Follow procedure
'8. All source audio'
trouble shooting guide.
12. Component Audio
Check Component Cable
for damage or open conductor.
Chec k JK1601, JK1603
& Signal Line.
ok
ok
No
Replace Jack.
Follow procedure
'8. All source audio'
trouble shooting guide.
13. RGB Audio
Check Cable conductors
for damage or open conductor.
Check JK1102 & Signal Line.
ok
No
ok
Replace Jack.
Follow procedure
'8. All source audio'
trouble shooting guide.
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BLOCK DIAGRAM
S7LR
(IC101)
TMD Data[0:2]± / CK±
CE
C(
Co
n
s
um
er
El
e
c
tr
o
n
ic
s Co
n
tro
l)
HP
D
(P1
9
)/
5
V
(P1
8)
EEP
ROM
(EDID)
HDMI
1
,2
DDC_
S
C
L
/S
D
A
R
G
B(
D-SUB)
DS
U
B
_
R
/G
/B
/V
S
Y
NC
/H
S
Y
N
C
DS
UB_DET(GN
D)
5V(P
9)
EEP
ROM
(EDID)
RGB_DDC_
S
C
L
/S
D
A
PC
A
UDIO
PC
_
L
/R
AV
Si
de, Rear
AV
_CVBS_IN
AV
_CVBS_DET
AV
_L
/R_IN
CO
M
P
O
N
EN
T
COM
P
_
Y
/P
b
/P
r
COM
P
_
DET
C
O
MP_L/R_IN
TU
N
E
R
TU
_
C
VB
S
/SIF
TU
_
S
CL
/S
DA
IF
_N/P_MST
AR
RS232C
PM_RXD
/TXD
MAX3
23
2CDR
(IC11
01)
IR
IR/KEY
1/2
Sof
tT
o
uch
_
SCL/S
D
A
,
SENS
O
R_SC
L
/S
D
A
LED_
B
/R(Ta
ct)
HDCP
(EEPROM)
I2
C
_
SCL/SD
A
IC
104
(EEPROM)
I2
C
_
SCL/SD
A
Seri
al Fla
s
h
SPI_CS/SCK/
S
D
O
SPI
_
S
DI
NAN
D
F
LA
S
H
P
C
M_
A[
0:7]
DD
R3 SD
R
AM
A_
DDR
3_
A[
0:1
4
]
/B_
DDR
3_
A[
0:1
4
]
A_
DDR
3_
DQL[
0
:7]
/A_
DDR
3_
D
Q
U
[
0:7]
B_
DDR
3_
DQL[
0
:7]
/B_
DDR
3_
D
Q
U
[
0:
7]
USB
US
B_
D
M
/D
P
LVD
S
R
X
A[
0:
3]
± /
CK±(60Hz HD)
R
X
A[
0:
4]
± / CK±(60Hz FHD)
SPD
IF
OPT
IC
SPD
IF
_
O
U
T
SPK
NTP-7400L
(IC501)
SPK
_
L/R±
AUD_LR
CH
CK/SCK
AMF_SDA
/S
CL
AMP_MUTE
L
E
D Dri
v
er
PWM_DIMM(TN M
o
d
ule)
HP
HP_
L
/R
HP_DET
HP_M
UT
E
- 23 -
300
200
LV
1
400
540
530
521
900
910
810
710
700
120
500
510
301
A2
A21
A5
A10
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE